/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraEmitterViewModel.h
Gets the currently assigned simulation if there is one.
[TWeakPtr](API\Runtime\Core\Templates\TWeakPtr)< [FNiagaraEmitterInstance](API\Plugins\Niagara\FNiagaraEmitterInstance), ESPMode::ThreadSafe > GetSimulation() const